How Does a Computer Monitor Work?
What is a Computer Monitor? A monitor is the visual output device connected to the computer tower. It displays picture and images in real time, allowing one to interact with the computer, activating and running its programs at will. There are two primary types of computer monitors, each with their own advantages over the other. A Cathode Ray Tube monitor, or CRT, is cheaper, more durable and able to withstand being damaged and remain functional, and has a better gradation between colors. A Liquid Crystal Display monitor, or LCD, is lighter and more compact, requires less electricity to power, and tends to have better resolution. Cathode Ray Tube Monitors A CRT has a large vacuum tube in the back, with a cathode containing a heated filament pointing forward, toward the viewer. This heated filament becomes an electron gun, firing off streams of electrons in response to the visual signal it receives from the computer. Ahead of the cathode, ringing it, is a set of electromagnets which acti
